暴风雪对自由空间量子通信信道的影响及性能分析
发布时间：2018-08-01 17:03
【摘要】：为了研究暴风雪对自由空间量子通信信道的影响,根据暴风雪的物理性质,将暴风雪的强度分为4个等级,首先提出了暴风雪天气等级与自由空间量子信道衰减的关系;针对退极化信道和相位衰减信道,分别建立了不同等级的暴风雪天气与信道纠缠度、信道保真度的模式方程;最后,分析了不同等级暴风雪对量子信道可用时间利用率的影响。数值分析及仿真结果表明,当暴风雪天气等级由1增加到4时,自由空间量子通信信道衰减由0.9增加到13;信道纠缠度由0.93减小到0.25,保真度由0.97衰减至0.85;信道的可用时间利用率由0.88降低到0.37。因此,为了提高自由空间量子通信的可靠性,应根据暴风雪天气灾害程度,自适应调整系统的各项参数。
[Abstract]:In order to study the influence of blizzard on quantum communication channel in free space, according to the physical properties of blizzard, the intensity of blizzard is divided into four grades. Firstly, the relationship between snowstorm weather grade and quantum channel attenuation in free space is proposed. For the depolarization channel and the phase attenuation channel, the mode equations of the weather, entanglement and fidelity of the channel are established respectively. Finally, the influence of different blizzards on the utilization of quantum channel time is analyzed. Numerical analysis and simulation results show that when the blizzard weather grade is increased from 1 to 4, The channel attenuation of free space quantum communication is increased from 0.9 to 13, the channel entanglement is reduced from 0.93 to 0.25, the fidelity is reduced from 0.97 to 0.85, and the available time utilization of the channel is reduced from 0.88 to 0.37. Therefore, in order to improve the reliability of quantum communication in free space, the parameters of the system should be adjusted adaptively according to the degree of blizzard weather disaster.
【作者单位】： 西安邮电大学电子工程学院;西北工业大学电子信息学院;西安电子科技大学综合业务网国家重点实验室;
【基金】：国家自然科学基金(61172071,61201194) 陕西省自然科学基础研究计划(2014JQ8318) 陕西省国际科技合作与交流计划项目(2015KW-013)
【分类号】：O413;TN918
本文编号：2158244
[Abstract]:In order to study the influence of blizzard on quantum communication channel in free space, according to the physical properties of blizzard, the intensity of blizzard is divided into four grades. Firstly, the relationship between snowstorm weather grade and quantum channel attenuation in free space is proposed. For the depolarization channel and the phase attenuation channel, the mode equations of the weather, entanglement and fidelity of the channel are established respectively. Finally, the influence of different blizzards on the utilization of quantum channel time is analyzed. Numerical analysis and simulation results show that when the blizzard weather grade is increased from 1 to 4, The channel attenuation of free space quantum communication is increased from 0.9 to 13, the channel entanglement is reduced from 0.93 to 0.25, the fidelity is reduced from 0.97 to 0.85, and the available time utilization of the channel is reduced from 0.88 to 0.37. Therefore, in order to improve the reliability of quantum communication in free space, the parameters of the system should be adjusted adaptively according to the degree of blizzard weather disaster.
【作者单位】： 西安邮电大学电子工程学院;西北工业大学电子信息学院;西安电子科技大学综合业务网国家重点实验室;
【基金】：国家自然科学基金(61172071,61201194) 陕西省自然科学基础研究计划(2014JQ8318) 陕西省国际科技合作与交流计划项目(2015KW-013)
【分类号】：O413;TN918
【相似文献】
相关期刊论文 前4条
1 张兴元,陈王丽华,蔡忠龙;VDF/TrFE铁电共聚物极化分布与退极化过程的激光强度调制方法研究[J];物理学报;1999年09期
2 杨桂华;周昌荣;;BNT-BKT-BiFeO_3无铅压电陶瓷的压电性能和退极化温度[J];人工晶体学报;2009年02期
3 罗海华，，罗裕基，张进修;铁电陶瓷PMN－PT在室温附近的退极化致冷效应[J];中山大学学报(自然科学版);1994年02期
4 ;[J];;年期
相关会议论文 前2条
1 吴肖令;张善民;邬学文;;CP MASS中的选择性极化反向和退极化[A];第五届全国波谱学学术会议论文摘要集[C];1988年
2 朱满康;段成辉;雷娜;宋雪梅;侯育冬;严辉;;Na_(1/2)Bi_(1/2)TiO_3基无铅压电体系退极化行为[A];陶瓷金属封接和真空电子与专用金属材料分会年会专辑[C];2013年
相关博士学位论文 前1条
1 姜立南;泡利和退极化噪声下纠缠动力学及量子隐形传输理论研究[D];哈尔滨工业大学;2014年
相关硕士学位论文 前1条
1 熊文强;聚合物基非线性复合电介质极化和退极化特性的实验研究[D];哈尔滨理工大学;2011年
本文编号：2158244
本文链接：https://www.wllwen.com/kejilunwen/xinxigongchenglunwen/2158244.html
